Advanced Community Energy: Case Studies

On this page:

  • What’s Already Happening Locally
  • Goleta 220KV/66KV Distribution System (The “Goleta Load Pocket”)
  • Montecito Community Microgrid Initiative (“MCMI”)
What’s Already Happening Locally

California has numerous local initiatives for decarbonization and resilience (many funded by CEC EPIC grants):

Goleta 220KV/66KV Distribution System (The “Goleta Load Pocket”)

  • Distribution System Locked within Service Boundary Peninsula. System load delivered via single pair of 220KV transmission lines, with 66KV back-up tie lines providing only a fraction of system load.
  • Coastal Cities Surrounded by Extreme Fire/Earthquake/Landslide Zones, with high potential for public safety power shutoff (PSPS) conditions.
  • Estimated Resilience Gap Between Primary Transmission and Back-up Tie Lines: ~200MW/400MWh.
  • County and municipal governments developing strategic energy plans but need state and utility assistance.
Montecito Community Microgrid Initiative (“MCMI”)

  • Dec. 2017 – Jan. 2018: Montecito community ravaged by rapid sequence of Thomas Fire and debris flows from torrential rain: 23 deaths, entire neighborhoods swept away
  • MCMI would provide resilience to critical facilities (Fire/Water Districts, Schools) located at the end of the Hot Springs 16KV circuit
  • Microgrid designs forced behind the meter as circuit modernization deemed not practical by SCE from traditional “least cost, best fit” analysis, limiting ability to design for maximum capacity at low load sites
  • ACE program could provide a platform for developing a true community microgrid that is replicable within Goleta Load Pocket